Find the mass of a body which has 5J of kinetic energy while moving at a speed of 2m/s `(AS_(1))`

What is kinetic energy ? Derive an expression for the kinetic energy of a body of mass .m. moving at a speed .v.. (AS_(1))

What is the kinetic energy of a 10kg mass moving at a speed of 30 km h^(-1) in calorie?

Find the mass, the kinetic energy and the momentum of an electron moving at 0.8c.

Find the de-Broglie wavelength of an electron moving with a speed of 5.2 xx 10^(5) m//s

A cycle together with its rider weighs 100 kg. How much work is needed to set it moving at 3 m/s (AS_(1))

Find the kinetic energy of a ball of 250 g mass, moving at a velocity of 40 cm/s.

The speed of the light in a diamong is 1, 24,000 km/s. Find the refractive index of diamond if the speed of light in air is 3,00,000 km/s. (AS_(1))

Find the speed at which the kinetic energy of a particle will differ by 1% from nonrelativistic value 1/ 2 m_0 V^(2) .